When is the cold dew in 2023?
Cold dew is the end of the full moon in the dry calendar and the beginning of the full moon. At night, looking up at the starry sky, you will find that the "Big Mars" (Antares) representing midsummer has sunk into the west. After the cold dew, the height of the sun continued to decrease and the temperature gradually decreased. Cold dew is called "cold dew" because the temperature is much lower than that of Bailu solar terms, and cold produces dew condensation. "Twenty-four solar terms" said: "In September, the dew is cold and will condense." At this time, the temperature is lower than when it is "white dew", with more dew and chill day and night.
There is a proverb in China called "Dew first turns white and then cold", which means that after the dew festival, the dew turns from a little coolness in early autumn to a little coolness in late autumn. There is also a proverb about cold dew: "Cold dew spans three dynasties, and you need to find a bridge after crossing the water", which means that the weather is already chilly and you can't wade across the river or go to the fields barefoot as before.
During the cold dew, people can obviously feel the change of temperature difference. From white and crystal dew to freezing cold, it vividly reflects the continuous decline of temperature. As the cold intensifies, everything becomes dim.
The custom of cold dew:
1, enjoy the red leaves:
In the cold dew season, many places have the custom of enjoying maple leaves. "Frost leaves are redder than February flowers" is also this season. The word "appreciation" of maple leaves is very important, which is different from sitting on the windowsill or walking down the street to see the leaves. You must go there to taste the beautiful things.
The north, especially the north of the Yellow River, is suitable for cold dew to see red leaves. The period of viewing red leaves in Beijing is from mid-June 65438+1October to1early October165438+1October, and the best period is from May to 30th 65438+1October. It can be said that Xiangshan is the most popular place to enjoy red leaves in China. When it comes to red leaves, people will unconsciously think of and mention it. Seeing the red leaves in Xiangshan during the cold dew season has long been a traditional habit of Beijing residents, and it is also the highlight of autumn outing.
2, drink chrysanthemum tea:
Every season has flowers suitable for its spiritual temperament. September of the lunar calendar, also known as Chrysanthemum Month, is Chrysanthemum Month. Unlike most flowers that bloom in spring and summer, chrysanthemums are out of season. The heavier the frost, the more gorgeous it will bloom. "Chrysanthemums begin to blossom" in the third phase of Cold Dew means that chrysanthemums generally open at this time. Chrysanthemum is the most representative flower in the cold dew season, which can be seen everywhere. In addition, due to the proximity of the Double Ninth Festival, there is a custom of drinking "chrysanthemum wine" in some areas, so the Double Ninth Festival is also called "Chrysanthemum Festival".
After the autumn harvest every year, Wenzhou people are good at brewing all kinds of fine wines, among which several jars of chrysanthemum wine are indispensable. At this time, the newly blooming chrysanthemums were mixed with some green leaves and grains to make wine, and it was not until this time of the next year that the altar was opened for drinking. It is said that this chrysanthemum wine is of great benefit to people's health.
The above contents refer to Baidu Encyclopedia-Cold Dew.